Valve for wood-pulp digesters.



N0. 705,09l. Patented July 22, I902.

J. JUULE.

VALVE FOR WGOD PULP DIGESTERS.

(Applicatiqn filed May 23, 1902.} (No Model.)

HIIFIH;

INVENTOR Jbsg WZ Jale UNITED STATES PATENT OFFICE.

JOSEPH JOULE, OF BELLEVILLE, NElV JERSEY, ASSIGNOR TO EASTWOOD WIREMANUFACTURING COMPANY, OF BELLEVILLE, NEW JERSEY, A

CORPORATION OF NEW JERSEY.

VALVE FOR WOOD-PULP DIGESTERS.

SPECIFICATION forming part of Letters Patent No. 705,091, dated July 22,1902. Application filed May 23, 1902. $eria1No. 108,615. (No model.)

To ctZZ whom, it may concern.-

Be itknown that I, JOSEPH JOULE, a citizen of the United States, and aresident of Belleville, in the county of Essex and State of New Jersey,have invented certain new and useful Improvements in Valves forVVood-Pul p Digesters and Similar Apparatus, of which the following is aspecification.

The invention relates to improvements in valves for digesters and otherapparatus employed in connection with the manufacture or preparation ofwood-pulp for paper-mak ing; and it consists in the novel featureshereinafter described and claimed. One object of the invention is toproduce a Y-valve, through the casing of which the pulp may pass withthe minimum amount of friction and which shall form a substantiallystraight passage for said pulp, the disk and its valve-seat being soarranged as to form no obstruction to the pulp; and a further object ofthe invention is to produce a structure in which a valve ring or seat ofappropriate shape and dimensions may be employed and properly disposedand conveniently renewed from time to time, as may be required.

The invention will be fully understood from the detailed descriptionhereinafter presented, reference being had to the accompanying drawings,in which- Figurel isacentral Yerticalsection, partly broken away,through a valve constructed in accordance with and embodying theinvention. Fig. 2 is a sectional View of same on the dotted line 2 2 ofFig. 1. Fig. 3 is a detached end view, partly broken away, of same, thisview being taken from the lefthand end of Fig. 1; and Fig. 4. is avertical 0 section of same on the dotted line 4 4. of

Fig. 1.

In the drawings, 10 designates one section of the valve-casing, and 11the other section thereof, said sections at their facing ends 4.5 beingformed with the flanges 12 13, adapted to receive securing-bolts let andto bind between themselves the encircling flange 15 of the valve seat orring 16.

The section 11 of the valve-casing is formed with the upper section 17,upon one side of which are mounted the frame 18 and gland 19 for thecustomary operating stem or screw 20, whose outer end is supplied with asuitable hand-wheel 21 and whose inner end is detachably connected withthe valve-disk 22 for moving the latter toward and from the valve ringor seat 16. The section 17 at its side running parallel with the valvestem or screw 20 is formed with an opening 23,through which thevalve-disk 22 may be introduced within the valve-casing, and whichopening is kept normally closed by means of the bronze metal plate 24.,covering-plate 25, and clamping-frame 26, the latter having hooked endsengaging flanges 27 on the valve-casing and carrying a binding-screw 28,by which the plates 25 and '24 may be detachably secured. The section1'7 of the va1ve-oasing is formed with longitudinal grooves 29, whichreceive guiding-lugs 30, formed on opposite 7o edges of the valve-disk22, and at one side the said casing 17 is formed with agroove 31,extending at right angles to and leadinginto one of the grooves 30 tofacilitate the introduction of the valve disk 22 through the opening 23.The valve-disk 2 2 is provided with a segmental flange 32,which passesupon the edges of the annular flange 33, formed on the inner end of thevalve-stem 20, and thereby detachably connects the valve-disk 22 withsaid valve-stem.

The main features of the present invention pertain to the formation ofthe valve-casing whereby the straight passage through the same issecured and whereby the valve ring or seat 16 of suitable dimensions maybe readily secured in place and renewed as frequently as may be desired.In carrying out this feature of the inventionl formthe casing in the twosections 10 11 and construct said sections, (more especially the section10,) except Where the valve-disk 22 performs its movement, in an ovaloutline, as shown in Figs. 3 and 4, the inner end of the section 10being on an angle of forty-five degrees to the 5 longitudinal center ofthe passage through the valve-casing, whereby a substantially circularopening is formed at said inner end of said section 10 and theemployment of a substantially circular valve-ring 16 permitted and icewhereby also I am enabled to seat said ring so that it will not projectinto the passage through the valve-casing, this being very desirable,and it being one of the purposes of the present construction that saidpassage shall be unobstructed. The section 10 of the valvecasing fromend to end possesses the oval bore, whose longer axis is horizontal, andat the entrance to said section 10 I preferably taper the upper andlower inner surfaces of said section, as shown. The important featuresof the section 10 are that it defines a horizontal oval in cross-sectionand that its inner flanged end is on an angle of forty-five degrees tothe longitudinal line of said section. The section 11 at its innerflanged end is also at an angle of forty-five degrees, correspondingwith the inner end of the section 10, and at the lower side of its innerportion said section is rounded, as shown in Fig. 2, while the upperside of said inner portion merges into the chamber formed within thesection 17 for the valve-disk 22. The inner surfaces of the section 11as they approach the outer end of the latter merge on diverging linesinto a circular opening.

The sections 10 and 11 are formed with suitable flanges 34, by which thevalve-casing may be secured to the usual sections of the piping in whichthe valve may be interposed.

The method of employing the valve will be readily understood, and itwill be seen that by the construction presented the valve ring or seat16 is disposed entirely without the passage through the sections 10 and11 and that said ring may be renewed from time to time, as required, byseparating said sections.

WhatIclaim as my invention, and desire to secure by Letters Patent, is,

1. The valve-casingcomprisingthe sections 10 and 11 flanged at theirmeeting ends and forming the passage for the pulp, and the valve ring orseat 16 held between said flanges, said section 10 forming a horizontaloval in cross-section and at its inner end extending at an angle ofabout forty-five degrees to the longitudinal plane of said section,combined with the valve-disk and its operating-stem; substantially asand for the purposes set forth.

2. Thevalve-casingcomprisingthesections 10 and 11 flanged at theirmeeting ends and forming the passage for the pulp, and the valve ring orseat 16 held between said fianges,'said section 10 forming a horizontaloval in cross-section and at its inner end extending at an angle ofabout forty-five degrees to the longitudinal plane of said section,

and the said section 11 being formed with the section 17 constituting achamber for the valve-disk and having the opening for the admission ofsaid disk, combined with the valvedisk and its operating-stem;substantially as set forth.

3. The valve-casing comprising the sections 10 and 11 flanged at theirmeeting ends and forming the passage for the pulp, and the valve ring orseat 16 held between said flanges, said section 10 forming a horizontaloval in cross-section and at its inner end extending at an angle ofabout forty-five degrees to the longitudinal plane of said section, andthe said section 11 being formed with the section 17 constituting achamber for the valve-disk and having the opening 23 and flanges 27,combined with the plates 24, 25, for said opening, the hookedclamping-frame 26 to pass over said plates and engage said flanges, thebinding-screw 28 carried by said frame, and the valve disk andoperatingscrew; substantially as set forth.

4. The valve-casing comprising the sections 10 and 11 flanged at theirmeeting ends and forming the passage for the pulp, and the valve ring orseat 16 held between said flanges, said section 10 forming a horizontaloval in cross-section and at its inner end extending at an angle ofabout forty-five degrees to the longitudinal plane of said section, andsaid section 11 having the section 17 for the valve-disk and a circularouter end into which the inner surfaces of said section merge ondiverging lines, combined with the valvedisk and its operating-screw;substantially as set forth. 7

5. Thevalve-casingcomprisingthesections l0 and 11 flanged at theirmeeting ends and forming the passage for the pulp, and the valve ring orseat 16 held between said flanges and being without said passage so asnot to obstruct the same,the said section 11 being formed with thesection 17 constituting a chamber for the valve-disk and having theopening 23 and closure therefor, combined with the valve-disk,theoperating-screw therefor, and the frame mounted on said section 17 forsaid screw; substantially as set forth.

Signed at NewYork, in the county of New York and State of New York, this21st day of May, A. D. 1902.

JOSEPH JOULE.

Witnesses:

CHAS. O. GILL, ARTHUR MARION.

